ISEE Middle Level Quantitative : Numbers and Operations

Study concepts, example questions & explanations for ISEE Middle Level Quantitative

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Example Questions

Example Question #421 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 45 is the multiplier and 57 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 5 and 7

Then, we multiply 5 and 5 and add the 3 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 4 and 7

Then, we multiply 4 and 5and add the 2 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #422 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 68 is the multiplier and 81 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 8 and 1

Then, we multiply 8 and 8

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 6 and 1

Then, we multiply 6 and 8

Finally, we add the two products together to find our final answer

 

Example Question #423 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 57 is the multiplier and 57 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 7 and 7

Then, we multiply 7 and 5 and add the 4 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 5 and 7

Then, we multiply 5 and 5and add the 3 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #424 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 43 is the multiplier and 34 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 3 and 4

Then, we multiply 3 and 3 and add the 1 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 4 and 4

Then, we multiply 4 and 3and add the 1 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #425 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 85 is the multiplier and 35 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 5 and 5

Then, we multiply 5 and 3 and add the 2 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 8 and 5

Then, we multiply 8 and 3and add the 4 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #426 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 68 is the multiplier and 45 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 8 and 5

Then, we multiply 8 and 4 and add the 4 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 6 and 5

Then, we multiply 6 and 4and add the 3 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #427 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 45 is the multiplier and 42 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 5 and 2

Then, we multiply 5 and 4 and add the 1 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 4 and 2

Then, we multiply 4 and 4

Finally, we add the two products together to find our final answer

 

Example Question #621 : Number & Operations In Base Ten

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 46 is the multiplier and 33 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 6 and 3

Then, we multiply 6 and 3 and add the 1 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 4 and 3

Then, we multiply 4 and 3and add the 1 that was carried

Finally, we add the two products together to find our final answer

 

Example Question #428 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 13 is the multiplier and 85 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 3 and 5

Then, we multiply 3 and 8 and add the 1 that was carried

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 1 and 5

Then, we multiply 1 and 8

Finally, we add the two products together to find our final answer

 

Example Question #429 : Numbers And Operations

Solve:

Possible Answers:

Correct answer:

Explanation:

 

In order to solve this problem using multiplication, we must multiply each digit of the multiplier by each digit of the multiplicand to get the answer, which is called the product.

For this problem, 37 is the multiplier and 20 is the multiplicand. We start with the multiplier, and multiply the digit in the ones place by each digit of the multiplicand.

First, we multiply 7 and 0

Then, we multiply 7 and 2

Now, we multiply the digit in the tens place of the multiplier by each digit of the multiplicand. In order to do this, we need to start a new line in our math problem and put a 0 as a place holder in the ones position.

Next, we multiply 3 and 0

Then, we multiply 3 and 2

Finally, we add the two products together to find our final answer

 

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